It’s hard to say whether Chuck the Groundhog can predict the weather, but he is a better judge of character than most New Yorkers.

Here’s Chuck the Groundhog in action in 2009.

Chuck wasn’t up for whatever it was that Mr. Bloomberg had planned for him — or for predicting how much longer winter was going to last, for that matter. And he got so annoyed at the mayor that he bit the mayor’s left hand, his sharp teeth piercing Mr. Bloomberg’s black leather gloves.

He tried to lure Chuck out of his cottage with an ear of corn, but Chuck shrewdly grabbed the corn and dragged it inside to enjoy. The mayor tried again, twice, but then, seemingly out of patience, he grabbed Chuck by the belly with both hands before he could hide again and held him up in the air for everyone to see.

By then, the mayor had already been bitten.

Chuck aka Charles Hogg didn’t take to William Wilhelm Jr. aka Bill de Blasio any better than he did to Bloomberg.

The mayor said he hoped that he and the weather-predicting creature would hit it off: “Chuck and my predecessor didn’t always get along, let’s be honest about that.” Five years ago, Chuck bit Mayor Michael R. Bloomberg. “But I’m hoping we can start a new day, a new relationship here,” Mr. de Blasio said.

The mayor crouched down. A handler held a carrot in front of the door. And Chuck emerged. But after Mr. de Blasio clutched the groundhog and stood up, Chuck leapt out of the mayoral arms toward the crowd and onto the ground, where he was recovered, uninjured, by his handler.

Mr. de Blasio, for his part, was gracious. “Live by the groundhog. Die by the groundhog,” he said, after reading his augury for more cold weather. “Thank you, Chuck. Thank you for your honesty, Chuck. He tells it like it is.”

Chuck probably doesn’t predict the weather too well, but he seems like a good judge of politicians.